Index: texmf/scripts/texlive/tlmgr.pl
===================================================================
--- texmf/scripts/texlive/tlmgr.pl	(revision 10512)
+++ texmf/scripts/texlive/tlmgr.pl	(working copy)
@@ -661,7 +661,7 @@
       next;
     }
     my $mediarev = $mediatlp->revision;
-    if ($rev < $mediarev) {
+    if (revless ($rev, $mediarev)) {
       $nrupdated++;
       if ($opt_list) {
         print "$pkg: local: $rev, source: $mediarev\n";
@@ -740,7 +740,7 @@
           print "update: $pkg done\n";
         }
       }
-    } elsif ($rev > $mediarev) {
+    } elsif (revless ($mediarev, $rev)) {
       print "$pkg: revision in $location is less then local revision, not updating!\n";
       next;
     }
Index: texmf/scripts/texlive/tlmgrgui/tlmgrgui-real.pl
===================================================================
--- texmf/scripts/texlive/tlmgrgui/tlmgrgui-real.pl	(revision 10512)
+++ texmf/scripts/texlive/tlmgrgui/tlmgrgui-real.pl	(working copy)
@@ -26,7 +26,7 @@
 use TeXLive::TLMedia;
 use TeXLive::TLPDB;
 use TeXLive::TLConfig;
-use TeXLive::TLUtils qw(setup_programs platform_desc win32);
+use TeXLive::TLUtils qw(setup_programs platform_desc win32 revless);
 use Getopt::Long qw(:config no_autoabbrev require_order);
 
 use Tk;
@@ -583,7 +583,7 @@
       } else {
         $urev = 0;
       }
-      if ($urev > $lrev) {
+      if (revless ($lrev, $urev)) {
         if ($lp =~ m/\./) {
           push @archret, $lp;
         } else {
Index: tlpkg/TeXLive/TLUtils.pm
===================================================================
--- tlpkg/TeXLive/TLUtils.pm	(revision 10512)
+++ tlpkg/TeXLive/TLUtils.pm	(working copy)
@@ -66,6 +66,7 @@
   TeXLive::TLUtils::conv_to_win_path($path);
   TeXLive::TLUtils::give_ctan_mirror($path);
   TeXLive::TLUtils::tlmd5($path);
+  TeXLive::TLUtils::revless($rev1, $rev2);
 
 =head1 DESCRIPTION
 
@@ -115,9 +116,10 @@
     &welcome_paths
     &give_ctan_mirror
     &tlmd5
+    &revless
   );
   @EXPORT = qw(setup_programs download_file info log debug ddebug tlwarn
-               process_logging_options win32);
+               process_logging_options win32 revless);
 }
 
 
@@ -1692,6 +1694,34 @@
   }
 }
 
+=pod
+
+=item C<revless ($rev1, $rev2) >
+
+Returns true if the first revision is less or equal than the second.
+
+=cut
+
+
+sub revless {
+  my ($a, $b) = @_;
+  # format of a revision number:
+  #   NNNN[.RRRR]
+  # NNNN and RRRR are integers (variable number of digits, but at least one
+  # for NNNN)
+  # 
+  my ($arev, undef, $arrr) = ($a =~ m/^([0-9]+)(\.([0-9]+))?$/);
+  my ($brev, undef, $brrr) = ($b =~ m/^([0-9]+)(\.([0-9]+))?$/);
+  $arrr || ($arrr = 0);
+  $brrr || ($brrr = 0);
+  return 1 if ($arev < $brev);
+  return 0 if ($arev > $brev);
+  # so now $arev == $brev
+  return 1 if ($arrr < $brrr);
+  # in all other cases return 0
+  return 0;
+}
+
 #############################################
 #
 # Taken from Text::ParseWords